It's 'Fresher's Week' for those embarking upon university for the first time. Whatever university may have in store, in Britain there's often one constant – the Christian Union (CU). Fresher's Week offers a slew of opportunities, one of them being a chance to hear – for many, for the first time – what Christianity is all about.

Today is the birthday of 19th-century missionary George Müller, a passionate prophet against poverty, an advocate for orphans and an enduring emblem of radical trust in God. Here are five things you might not know about his remarkable life.